| 1826-C |
Dreaming of Freedom
|
greedy
math
number theory
|
1300
|
| 1826-B |
Lunatic Never Content
|
math
number theory
|
1100
|
| 1826-A |
Trust Nobody
|
brute force
greedy
implementation
+1
|
1200
|
| 1825-B |
LuoTianyi and the Table
|
greedy
math
|
1000
|
| 1825-A |
LuoTianyi and the Palindrome String
|
greedy
strings
|
800
|
| 1824-E |
LuoTianyi and Cartridge
|
data structures
trees
|
3500
|
| 1824-D |
LuoTianyi and the Function
|
data structures
|
3000
|
| 1824-C |
LuoTianyi and XOR-Tree
|
data structures
dfs and similar
dp
+3
|
2500
|
| 1824-B2 |
LuoTianyi and the Floating Islands (Hard Version)
|
combinatorics
dfs and similar
math
+2
|
2300
|
| 1824-B1 |
LuoTianyi and the Floating Islands (Easy Version)
|
combinatorics
math
probabilities
+1
|
1800
|
| 1824-A |
LuoTianyi and the Show
|
greedy
implementation
|
1400
|
| 1823-F |
Random Walk
|
dp
graphs
math
+2
|
2600
|
| 1823-E |
Removing Graph
|
brute force
dp
games
+2
|
2500
|
| 1823-D |
Unique Palindromes
|
constructive algorithms
math
strings
|
1900
|
| 1823-C |
Strongly Composite
|
greedy
math
number theory
|
1300
|
| 1823-B |
Sort with Step
|
brute force
math
sortings
|
900
|
| 1823-A |
A-characteristic
|
combinatorics
constructive algorithms
math
|
800
|
| 1822-G2 |
Magic Triples (Hard Version)
|
brute force
data structures
math
+1
|
2200
|
| 1822-G1 |
Magic Triples (Easy Version)
|
brute force
data structures
math
+1
|
1700
|
| 1822-F |
Gardening Friends
|
brute force
dfs and similar
dp
+2
|
1700
|
| 1822-E |
Making Anti-Palindromes
|
greedy
math
strings
|
1600
|
| 1822-D |
Super-Permutation
|
constructive algorithms
math
|
1200
|
| 1822-C |
Bun Lover
|
math
|
800
|
| 1822-B |
Karina and Array
|
greedy
math
sortings
|
800
|
| 1822-A |
TubeTube Feed
|
brute force
implementation
|
800
|
| 1821-F |
Timber
|
combinatorics
dp
fft
+1
|
2600
|
| 1821-E |
Rearrange Brackets
|
brute force
dp
greedy
+2
|
2100
|
| 1821-D |
Black Cells
|
binary search
brute force
greedy
+1
|
1900
|
| 1821-C |
Tear It Apart
|
brute force
implementation
math
+1
|
1300
|
| 1821-B |
Sort the Subarray
|
brute force
greedy
|
1100
|
| 1821-A |
Matching
|
combinatorics
math
|
800
|
| 1820-B |
JoJo's Incredible Adventures
|
math
strings
two pointers
|
1100
|
| 1820-A |
Yura's New Name
|
implementation
strings
|
800
|
| 1819-F |
Willy-nilly, Crack, Into Release!
|
data structures
dp
|
3500
|
| 1819-E |
Roads in E City
|
interactive
math
probabilities
+1
|
3200
|
| 1819-D |
Misha and Apples
|
brute force
data structures
dp
+1
|
2800
|
| 1819-C |
The Fox and the Complete Tree Traversal
|
constructive algorithms
dp
implementation
+2
|
2400
|
| 1819-B |
The Butcher
|
geometry
greedy
implementation
+2
|
1900
|
| 1819-A |
Constructive Problem
|
brute force
greedy
|
1300
|
| 1818-B |
Indivisible
|
constructive algorithms
|
900
|
| 1818-A |
Politics
|
greedy
implementation
|
800
|
| 1817-F |
Entangled Substrings
|
string suffix structures
strings
|
3500
|
| 1817-E |
Half-sum
|
brute force
divide and conquer
greedy
|
3400
|
| 1817-D |
Toy Machine
|
constructive algorithms
games
implementation
|
2700
|
| 1817-C |
Similar Polynomials
|
combinatorics
math
|
2400
|
| 1817-B |
Fish Graph
|
brute force
constructive algorithms
dfs and similar
+1
|
1900
|
| 1817-A |
Almost Increasing Subsequence
|
binary search
data structures
greedy
|
1500
|
| 1816-B |
Grid Reconstruction
|
constructive algorithms
greedy
|
1000
|
| 1816-A |
Ian Visits Mary
|
constructive algorithms
geometry
number theory
|
800
|
| 1815-F |
OH NO1 (-2-3-4)
|
constructive algorithms
graphs
math
|
3500
|